Showing papers on "Excoecaria agallocha published in 1995"

A Novel Phorbol Ester from Excoecaria agallocha

Abstract: The novel phorbol ester 12-deoxyphorbol 13-(3E,5E-decadienoate) [1] was isolated as the anti-HIV principle of Excoecaria agallocha leaves and stems collected in northwest Australia. The structure was determined by spectral means. Compound 1 was also a potent displacer of [3H]-phorbol dibutyrate from rat brain membranes.

Coatal salt marshes and mangrove swamps in China

Abstract: Based on plant specimen data, sediment samples, photos, and sketches from 45 coastal crosssections, and materials from two recent countrywide comprehensive investigations on Chinese coasts and islands, this paper deals with China’s vegetative tidal-flats: salt marshes and mangrove swamps. There are now 141700 acres of salt marshes and 51000 acres of mangrove swamps which together cover about 30% of the mud-coast area of the country and distribute between 18°N (Southern Hainan Island) and 41 °N (Liaodong Bay). Over the past 45 years, about 1750000 acres of salt marshes and 49400 acres of mangrove swamps have been reclaimed. The 2.0×109 tons of fine sediments input by rivers into the Chinese seas form extensive tidal flats, the soil basis of coastal helophytes. Different climates result in the diversity of vegetation. The 3∼8 m tidal range favors intertidal zone development. Of over 20 plant species in the salt marshes, nativeSuaeda salsa, Phragmites australis, Aeluropus littoralis, Zoysia maerostachys, Imperata cylindrica and introducedSpartina anglica are the most extensive in distribution. Of the 41 mangrove swamps species,Kandelia candel, Bruguiera gymnorrhiza, Excoecaria agallocha andAvicennia marina are much wider in latitudinal distribution than the others. Developing stages of marshes originally relevant to the evolution of tidal flats are given out. The roles of pioneer plants in decreasing flood water energy and increasing accretion rate in the Changjiang River delta are discussed.

Vegetation analysis of restored and natural mangrove forest in Sagar island, Sundarbans, east coast of India

Abstract: Ecological conditions were similar in the restored and natural mangrove forests, though they differed in age and elevation. The restored forest experienced total diurnal inundation, but the natural forest was not fully inundated. Thus the former was dominated by Avicennia alba, Avicennia marina and Porteresia coarctata, while the latter was dominated by Excoecaria agallocha, Ceriops decandra, Acanthus ilicifolius and Derris trifoliata. Similarity and diversity for tree and shrub layers were low and the dominance-diversity curves approached geometric series.